Iranian officials visit the IAEA in Vienna for nuclear talks

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IAEA chief inspector Herman Nackaerts arrives at the Iranian permanent mission to the UN on May 14, 2012 in Vienna.

Story highlights

Iranian officials arrive at the offices of the U.N. nuclear watchdog in Vienna

The meeting is about how to address Iran's nuclear program, state media say

Iran is under intense international pressure to rein in its nuclear program

It denies allegations that it is working on nuclear weapons

An Iranian delegation met with officials from the International Atomic Energy Agency in Vienna, Austria, on Monday as diplomatic wrangling continues over Tehran's controversial nuclear program.

These are the first negotiations between Iran and the agency in three months -- the two sides held talks in Tehran in January and February, according to Iran's state-run Press TV

The aim of the current meeting is to "devise a framework for answering questions about Tehran's nuclear energy program," Press TV said in an article on its website, citing the Iranian ambassador to the IAEA, Ali Asghar Soltanieh.

In March, the IAEA noted what it called a sharp and troubling increase in Iran's uranium enrichment capabilities.

Iran denies allegations that it is working on nuclear weapons and says its program is solely directed toward developing civilian nuclear energy.